The internationally recognized faculty of the Medical Microbiology Laboratory has extensive experience developing, conducting, and interpreting tests for patients with viral, bacterial, fungal, and parasitic infections, and for those prone to infections, such as cancer and AIDS patients.

For any clinician or patient questions:

Contact Us
Microbiology lab - Anita Tembo
No Image Available

Faculty SpotLight

Nicole Parrish, Ph.D.

Dr. Nicole Parrish is an associate professor of pathology at the Johns Hopkins University School of Medicine. Dr. Parrish serves as the associate director of medical mycobacteriology at The Johns Hopkins Hospital.

Dr. Parrish’s research focuses on characterizing the mechanism of action of a novel class of antimycobacterial compounds, including multi-drug resistant strains. She is studyin... Read full bio

Browse All Faculty

Navigating the Escalating Fungal Crisis: Insights from Dr. Sean Zhang

Sean Zhang

Fungal infections are increasing at an alarming rate as is resistance to current antifungal therapies. In his article in the April edition of CAP Today, Dr. Sean Zhang, Associate Professor of Pathology and Director of the Mycology Laboratory in the Division of Medical Microbiology, highlights these current threats and draws attention to diagnostic gaps in fungal infections.

Dr. Zhang draws attention to such pathogens as Candida auris, an organism that was rare in the USA and infrequently isolated at Johns Hopkins until 2020. Currently, this organism is responsible for outbreaks in hospital settings and has become resistant to many of the standard agents used to treat Candida infections. This is just one of the many organisms highlighted on the WHO fungal priority list which is discussed in the article.

Dr. Zhang and 29 other mycologists in the USA and Canada have joined forces and created the Fungal Diagnostics Consortium designed to improve laboratory diagnosis of fungal diseases. In a publication in the Journal of Clinical Microbiology 2021; 59:e0178420, the Consortium highlighted gaps in fungal diagnostics and Dr. Zhang summarized them in a bulleted list in the CAP article. The Consortium has also developed training course in Medical Mycology that has been very successful. Dr. Zhang’s own impactful clinical and research activities in this area are also highlighted.

Congratulations, Dr. Zhang and many thanks for highlighting this critical medical issue.

USCAP 2024

The 113th annual meetings of the United States and Canadian Academy of Pathology was held in Baltimore this year. This provided a wonderful opportunity for our alumni to visit their “old stomping grounds,” see what has changed, and most importantly, to reunite and share stories.

After a tour of the hospital guided by current residents, 100 alumni, friends, and current residents and faculty, gathered in the Armstrong Teaching Building for drinks and dinner.

The highlight of the evening was an entertaining talk “A short history of Pathology,” by Peter Burger.

Congratulations Castle Connolly Top Docs for 2024

Castle Connolly just announced their “top doctors” for 2024, and three of our faculty are on the list! 2024 Castle Connolly Top Doctors As they describe it, ” Castle Connolly Top Doctors are peer-nominated, and thoroughly vetted by our physician-led research team. These doctors are best-in-class healthcare providers, embodying excellence in clinical care as well as interpersonal skills.”

Congratulations Drs. Pedram Argani, Ralph H. Hruban and Brigitte M. Ronnett!